\section{Introduction}

\subsection{What is PolyGame}
\emph{Polygame} is a game which aims at making the players aware of the climate crisis and try to make them ponder about possible solution to the excessive CO$_{2}$ emissions.\\
The idea behind this game comes from the work of Robert H. Socolow and Stephen W. Pacala (described in \cite{scientificAmerican} and \cite{science}), which has been slightly revisited by Professors Renato Casagrandi and Giulia Fiorese. They have created a version of the game for the Spring School 2009 (\emph{Global Change and Sustainability}) of Alta Scuola Politecnica.


\subsection{Why PolyGame}
PolyGame aims at making the players aware of the climate crisis and try to engage them through a game which make them ponder about possible solution to the excessive CO$_{2}$ emissions.\\
At the end of the game, players will certainly be more aware of the climate crisis but will also have broader knowledge of CO2 emission solutions. The activity may also lead players to change their everyday behavior due to their deeper understanding of the environmental issues.


\subsection{What is this document}
This document is the user guide for the \emph{Polygame} web application.\\
In the next sections we are going to describe in depth rules and users roles of this game:

\begin{itemize}
\item rules are described in section~\ref{rules}
\item users roles are described in section~\ref{users}
\end{itemize}
